4 Investigations on, t/te Life- History 



be necessary to determine the precise amount of muscle on the fish, and 

 since this was impossible in the fish required for market, Mr. 

 Johnston, of Montrose, was approached by Professor Macintosh, of 

 St. Andrews, and, at his own expense, supplied a series of salmon caught 

 in his fishings on the North Esk throughout the season. 



The material so accumulated and examined yielded results of consider- 

 able interest, but clearly showed that, to make the investigation 

 complete, a more extensive supply was necessary. Further, Mr. 

 Archer's Report to the Fishery Board for 1895 showed that in any such 

 investigation results obtained from grilse could not with safety be applied 

 to salmon. For this reason it was resolved to exclude grilse from 

 the investigation. 



Mr. Archer threw himself into the progress of the enquiry with 

 enthusiasm, and, a grant having been obtained from the Fishery Board 

 to defray the expenses of collecting material, he made arrangements for a 

 large supply of fish throughout the season of 1896. 



To thoroughly check and control observations, it was arranged to 

 procure salmon from different rivers, and the Helmsdale, Spey, Dee, 

 and Annan were selected. 



It was further arranged that fish should be supplied first from the 

 mouth of each river, and second from the upper reaches. 



Through the liberality of the various proprietors the Duke of 

 Richmond, the Duke of Sutherland, the Duke of Fife, the Dee 

 (Aberdeenshire) District Board, Mr. Mackenzie of Newbie, and the 

 late Mr. Heywood-Lonsdale, the following supply of material was 

 obtained : 



1895. 



From Mr. Johnston, of Montrose, 10 male and 9 female salmon and 

 grilse were received. 



From Mr. Tosh, at Berwick-on-Tweed, and later at Melrose, the 

 viscera and a portion of the muscle of 18 fish were obtained. 



Four whole salmon were late in the year received from the upper 

 waters of the Tweed through the courtesy of the Police Committee of 

 the Commissioners of the River. 



1896. 



On March 6th the viscera of seven salmon captured at the mouth of 

 the Tweed were procured at Berwick. 



From May to November 69 salmon were received from the various 

 stations as follows : 



[n the spring of 1897, 22 kelts were received from the Spey. 



